Let's say you are facing Affinity and your opponent has both a Steel Overseer and Welding Jar on the BF. How does KCommand interact with Regeneration? This might be a strange thing to ask, but it could matter in specific cases. Safe them if you don't want to thin your deck! Raging Ravine)? Fetchlands have become a lot more valuable due to Fatal Push and Jace, the Mind Sculptor. Does my hand get all colours I need in time? Do lands enter the BF tapped at some point? When is the best option to play my tapped lands (e.g. I would recommend that you start thinking through your fetching sequencing while looking at the opening hand. Don't mess this up by fetching for the wrong lands in the first few turns and then you are stranded with a couple of tapped black mana sources (like a Blackcleave Cliffs) which prevent you from casting a potentially needed LotV.

We generally want to have double black on turn 3 for Liliana. Think about the color requirements we have in our deck. So, if your intentions are to get a shockland anyway, then always use other fetchlands first for that. If it comes down to getting any shockland in our deck, it doesn't matter which fetchland you use. Generally speaking, Verdant Catacombs is our best fetchland since it can get both our basic lands.

Ragavan, Nimble Pilferer if they either have enough blockers (Titan decks with Arboreal Gazer) or if the body is irrelevant (Eldrazi Tron).

Wrenn and Six (especially without access to GQ).

Creature removal (keep removal that kills Dryad of the Ilysian Grove in the according matchups).

(Mass) Artifact destruction (not against Titanbreach / Titanshift).

Necromentia can take away a critical card (Primeval Titan Tronlands Valakut, the Molten Pinnacle) (not against Eldrazi Tron).Boil is a one sided Armageddon with Dryad of the Illysian Grove.Ashiok, Dream Render to prevent them from searching with Expedition Map, Tolaria West, Summoner’s Pact, Primeval Titan, Urza’s Saga, general ramp spells, … (not against Eldrazi Tron).Lock pieces ( Alpine Moon, Blood Moon, Damping Sphere ).LD to fight their ramp: Obsidian Charmaw, Pillage, Fulminator Mage, Cleansing Wildfire, Ghostquarter (GQ), Break the Ice….

Dredge modern sideboard guide